WASHINGTON (Reuters) - Saudi Arabia called the 2015 nuclear deal between Iran and world powers a "flawed agreement" on Monday, on the eve of a meeting between the Saudi crown prince and U.S. President Donald Trump who have both been highly critical of Iran.

BRUSSELS (Reuters) - Britain and the European Union agreed on Monday to a transition period to avoid a "cliff edge" Brexit next year -- though only after London accepted a potential solution for Northern Ireland's land border that may face stiff opposition at home.

MOSCOW (Reuters) - Russian President Vladimir Putin struck a softer tone towards the West on Monday after winning his biggest ever election victory, saying he had no desire for an arms race and would do everything he could to resolve differences with other countries.